共查询到20条相似文献,搜索用时 46 毫秒
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VA菌根共生的起源和进化 总被引:12,自引:2,他引:10
VA菌根共生的起源和进化赵之伟(云南大学生物学系,昆明650091)OriginandEvolutionoftheVAMycorrhizalSymbiosis.ZhaoZhiwei(BiologyDepartmentofYunnanUniversit... 相似文献
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云南木桫椤属(桫椤科)一新种 总被引:2,自引:0,他引:2
云南木桫椤属(桫椤科)一新种陆树刚(云南大学生态学与地植物学研究所,昆明650091)ANewSpeciesofAlsophila(Cyatheaceae)fromYunnanLUShu-Gang(InstituteofEcologyandGeob... 相似文献
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一种简单、经济的植物RNA抽提方法 总被引:3,自引:0,他引:3
孟玲 谭德勇 王焕效 吕朝晖 王晓燕 周翔MENG Ling TAN De-yong WANG Huan-xiao LV Zhao-hui WANG Xiao-yan ZHOU Xiang 《遗传》1998,20(4):28-30
一种简单、经济的植物RNA抽提方法孟玲谭德勇王焕效吕朝晖王晓燕周翔(云南大学生物系,昆明650091)ASimpleEconomicalMethodfortheIsolationofPlantRNAMENGLingTANDeyongWANGHuanx... 相似文献
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桃儿七生化生态适应的初步研究 总被引:1,自引:0,他引:1
桃儿七生化生态适应的初步研究马绍宾胡志浩李俊(云南大学生物系,昆明650091)(云南省香料中心,昆明650051)APriliminaryStudyoftheBiochemicalEcologicalAdaptationofSinopodophy... 相似文献
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云南可持续发展的生态学问题 总被引:2,自引:0,他引:2
云南可持续发展的生态学问题吴玉树(云南大学,昆明650091)EcologicalProblemsofSustainableDevelopmentinYunnanProvince.WuYushu(DepartmentofBiology,YunnanU... 相似文献
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云南蕨类植物区系新记录(Ⅰ) 总被引:1,自引:0,他引:1
云南蕨类植物区系新记录(Ⅰ)陆树刚,张光飞(云南大学生态学与地植物学研究所,昆明650091)NEWRECORDSTOTHEPTERIDOFLORAOFYUNNAN(Ⅰ)¥LUShu-Gang;ZHANGGuang-Fei(InstituteofEc... 相似文献
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生态系统的冗余与营养结构模型 总被引:15,自引:4,他引:11
生态系统的冗余与营养结构模型党承林黄瑞复(云南大学生态学与地植物学研究所,昆明650091)RedundancyinEcosystemsandtheModelforTrophicStructure.DangChenglin,HuangRuifu(In... 相似文献
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植物对环境污染的适应与植物的微进化 总被引:44,自引:0,他引:44
植物对环境污染的适应与植物的微进化段昌群(云南大学生物系昆明650091)PlantAdaptationtoEnvironmentalPollutionandItsMicro-evolution¥,DuanChangqun(DepartmentofB... 相似文献
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Michael Hesse 《Plant Systematics and Evolution》1980,134(3-4):229-267
Some closely related members of the monocotyledonous familiesAlismataceae, Liliaceae, Juncaceae, Cyperaceae, Poaceae andAraceae with variable modes of pollination (insect- and wind-pollination) were studied in relation to the ultrastructure of pollenkitt and exine (amount, consistency and distribution of pollenkitt on the surface of pollen grains). The character syndromes of pollen cementing in entomophilous, anemophilous and intermediate (ambophilous or amphiphilous) monocotyledons are the same in principal as in dicotyledons. Comparing present with former results one can summarize: 1) The pollenkitt is always produced in the same manner by the anther tapetum in all angiosperm sub-classes. 2) The variable stickiness of entomophilous and anemophilous pollen always depends on the particular distribution and consistency of the pollenkitt, but not its amount on the pollen surface. 3) The mostly dry and powdery pollen of anemophilous plants always contains a variable amount of inactive pollenkitt in its exine cavities. 4) A step-by step change of the pollen cementing syndrome can be observed from entomophily towards anemophily. 5) From the omnipresence of pollenkitt in all wind-pollinated angiosperms studied one can conclude that the ancestors of anemophilous angiosperms probably have been zoophilous (i.e. entomophilous) throughout. 相似文献
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Surveillance of Class Ⅰ Newcastle Disease Virus at Live Bird Markets and Commercial Poultry Farms in Eastern China Reveals the Epidemic Characteristics 下载免费PDF全文
Xiaolong Lu Xiaoquan Wang Tiansong Zhan Yifan Sun Xin Wang Naiqing Xu Tianxing Liao Yu Chen Min Gu Shunlin Hu Xiaowen Liu Xiufan Liu 《中国病毒学》2021,36(4):818-822
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正Dear Editor,Parainfluenza virus 5 (PIV5), known as canine parainfluenza virus in the veterinary field, is a negative-sense,nonsegmented, single-stranded RNA virus belonging to the Paramyxoviridae family (Chen 2018). The virus was first reported in primary monkey kidney cells in 1954 (Hsiung1972), then it has been frequently discovered in various 相似文献
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Altaf Hussain Tiantian Wu Hui Li Linjin Fan Kai Li Li Gao Yongqiang Wang Yulong Gao Changjun Liu Hongyu Cui Qing Pan Yanping Zhang Asim Aslam Khan Muti-Ur-Rehman Muhammad Munir Salman Latif Butt Xiaomei Wang Xiaole Qi 《中国病毒学》2019,34(1):102-105
<正>Dear Editor,Infectious bursal disease (IBD) is one of the most important diseases of the poultry. The IBD virus (IBDV), a nonenveloped virus belonging to the Birnaviridae family with a genome consisting of two segments of double-stranded RNA (segments A and B), targets B lymphocytes of bursa of Fabricious leading to immunosuppression. In Pakistan,poultry farming is the second biggest industry and IBD is the second biggest disease threating the poultry sector.However, there is limited genome information of IBDV 相似文献